remove hyphen from S-35710

Author: FoamyGuy

.gitmodules

@@ -1000,7 +1000,7 @@
 	url = https://github.com/adafruit/Adafruit_CircuitPython_ADG72x.git
 [submodule "libraries/drivers/s35710"]
 	path = libraries/drivers/s35710
-	url = https://github.com/adafruit/Adafruit_CircuitPython_S-35710.git
+	url = https://github.com/adafruit/Adafruit_CircuitPython_S35710.git
 [submodule "libraries/drivers/ch9328"]
 	path = libraries/drivers/ch9328
 	url = https://github.com/adafruit/Adafruit_CircuitPython_CH9328.git